FOTD 21-06-03 (Beware the Lava Pit [5])
FOTD -- June 21, 2001 (Rating 5) Fractal visionaries and enthusiasts: What do you get when you mix some Z^(1.1) with some Z^(-1.1)? A pit of boiling hot lava of course. I named the image "Beware the Lava Pit". Actually, I should have named it "Beware the Magma Pit" since the scene is underground, and molten rock is known as magma until it reaches the surface. Only then is it called lava. When the time came to rate the image, I studied it several minutes before realizing that it was merely an average image. The rating of 5 is average. There's nothing wrong with being average, it's just that I like my FOTD images to be above average, and the greater the number of above-average images I post, the higher the standard of average becomes. One thing that does not change however is the average render time of my FOTD's, which currently stands around 12 minutes on my tired, worn-out P200 machine with the exhaust fan that needs to be nudged before it starts turning. When I forget to nudge it, the smell of the over-heated power-supply unit soon reminds me to give it its nudge. Today's image requires 25 minutes to complete on my machine. It will finish faster on faster machines. But the fastest way of all to see the lava pit is to download the completed GIF image from one of the FOTD web sites at: <http://home.att.net/~Paul.N.Lee/FotD/FotD.html> and at: <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html> Heavy rain fell during the day Friday here at Fractal Central. The cats, who were confined to the indoors, turned sullen in the afternoon. Several treats of tuna were needed to restore their spirits. Today is starting with a bit of sun, but heavy storms, and perhaps hail, are due this afternoon. I doubt that the cats will have a good day. If the grass dries enough, I'll trim it today. If not, I'll let it grow another couple inches. In any case, I'll visit Fractal Land to track down the next fractal. Until next time, take care, and beware. Jim Muth jamth@mindspring.com jimmuth@aol.com START 20.0 PAR-FORMULA FILE================================ Beware_the_LavaPit { ; time=0:25:44.24--SF5 on a P200 reset=2002 type=formula formulafile=allinone.frm formulaname=MandelbrotMix2 function=recip passes=1 center-mag=+0.15929781727837890/+0.033662025303030\ 13/7.522503e+007/1/52.5/4.46614381509335967e-006 params=-0.86/1.1/-0.53/-1.1/0.03/525/0/0 float=y maxiter=3400 inside=0 periodicity=10 colors=000pl8niAmeCkbFjZHhWJfSMePOcLQbIT`EV_BXgUZo\ l_dmNVqBWtDXwEYzFZzG_zH`zJazKbzLczMczN_zTWzYSzbOzh\ KzmHzrzkKziKzgKzeKzcKzaKz_KzYJzWIzUHzSGyQGxOGwMFvK\ FuFEtAEs5ErBJoFNnJ_hNWeRhbWcZ_mWclTgpQhtReqRfrRdrR\ aqR_qRYpRVpSToSRoSOnSMnSKmSHmSFlSDlRHmRKnQOnQRoQUp\ PYpP`qPcrOgrOesOksPcmQVhRLbSCYT3TUAXUTlUNdUZrU_kUe\ oUlsUjwUrzMlwFot7kq0gn1fk2ei3dg4cd5cb6b`6aY7`W8`U9\ _RAZPBYNBYLVMAmA0f63_25Z36Y37X38W39V3AV4AU4BT4CS4D\ R4ER4ET7FUAFVCFWFFXHFYKGZMG_PG`RGaUGbWGams_kqZjoXi\ mWhkVgiTfgSeeRddSbbSa`S_ZTZXTXVTWTUURUTQUSOVQMVPKV\ NIWMGWKEWJCWIBZKI`MPbNWePbgRiiSoeVmbXlZZkWaiSchPeg\ Q`aRXXSTRSPMQOKONJNMILLHKKGIJFHIEFHDDGCCFBAEA9D97C\ 86B7AF6DI6GM5JP5MT4PW4V`4_e4ei4jn4ps4uw4WoH6hUHXJR\ M8VJAZGCaDEeAGi7Il5JhJUdXc`jmXwwUrkRm_OhOLcCOVGRMJ\ UDMX5PeeUdbSc`QbYObWMaUK`RI_PG_MFZKDYIBXF9XD7WA5V8\ 3V62ZD3aK3eR4hX4lc5oj5rp5 } frm:MandelbrotMix2 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(((-a*b*g*h)^j)+(p4)), k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE==================================
FOTD -- June 21, 2001 (Rating 5)
Fractal visionaries and enthusiasts:
I named the image "Beware the Lava Pit". Actually, I should have named it "Beware the Magma Pit" since the scene is underground, and molten rock is known as magma until it reaches the surface. Only then is it called lava.
Well blimey... you learn something every day!
On Sat, 21 Jun 2003 10:01:30 -0400, Jim Muth wrote: FOTD -- June 21, 2001 (Rating 5) Fractal visionaries and enthusiasts:
What do you get when you mix some Z^(1.1) with some Z^(-1.1)? A pit of boiling hot lava of course. I named the image "Beware the Lava Pit". Actually, I should have named it "Beware the Magma Pit" since the scene is underground, and molten rock is known as magma until it reaches the surface. Only then is it called lava.
For some reason this image and the one on 20 June would not download for me from Mr Boyd's site - the text did, but not the image. However both downloaded properly from Paul Lee's site. While I am writing, my thanks to both you guys for your services to this list, I do not know what the problem is - I use Opera if that is relevant. Best wishes John -- John Lewis, jlewis@clara.net on 21/06/2003
On Sat, 21 Jun 2003 19:18:44 +0100, John Lewis wrote:
For some reason this image and the one on 20 June would not download for me from Mr Boyd's site - the text did, but not the image. However both downloaded properly from Paul Lee's site.
While I am writing, my thanks to both you guys for your services to this list, I do not know what the problem is - I use Opera if that is relevant.
Worked all right this morning from Mr Boyd's site! John -- John Lewis, jlewis@clara.net on 22/06/2003
John Lewis wrote:
For some reason this image and the one on 20 June would not download for me from Mr Boyd's site - the text did, but not the image. However both downloaded properly from Paul Lee's site.
The major difference between our two sites is that I do my web pages the old fashioned way (by hand using Notepad), and Scott is an automated one using a Perl script. And though I once made an error doing it my way, errors can occur more often through a script when not monitored. For instance, when the greater-than sign "<" is used followed by an alphabetic character, most HTML browsers see that as the beginning of a tag. And if the word/s between the "<" and the ">" is not a valid tag, then is probably would not be displayed. I usually catch most of these, but it would be difficult for a script to handle all instances of such. Other kinds of problems may also occur which would not be detected by running a script to produce web pages. By my doing so manually, I can even correct some of Jim's slight erros, such as the beginning of this FOTD which read: FOTD -- June 21, 2001 (Rating 5) and should have had a year that was not two in the past. ;-}
While I am writing, my thanks to both you guys for your services to this list....
Thank you very much. :-)
....I do not know what the problem is - I use Opera if that is relevant.
Worked all right this morning from Mr Boyd's site!
You will need to ask Scott what happened from his site. Later, P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/
"Paul N. Lee" wrote:
...I do my web pages the old fashioned way (by hand using Notepad),..
[bwg] And I thought *I* was macho because I do mine using vi (gvim, actually)!
For instance, when the greater-than sign "<" is used followed by an alphabetic character, most HTML browsers see that as the beginning of a tag. And if the word/s between the "<" and the ">" is not a valid tag, then is probably would not be displayed. I usually catch most of these, but it would be difficult for a script to handle all instances of such.
A script that converts straight text to HTML should convert *all* "<", ">" and "&" to their HTML equivalents (>, < and &), because those are not legal HTML characters. But if the input contains HTML, then I can see it getting pretty tough! -- |_ CJSonnack <Chris@Sonnack.com> _____________| How's my programming? | |_ http://www.Sonnack.com/ ___________________| Call: 1-800-DEV-NULL | |_____________________________________________|_______________________|
Programmer Dude wrote:
"Paul N. Lee" wrote:
...I do my web pages the old fashioned way (by hand using Notepad),..
[bwg] And I thought *I* was macho because I do mine using vi (gvim, actually)!
Actually, using the vi Editor (along with the ex Editor) would make some things much easier than the old Win-95/98 Notepad. Especially when I need to do mass replacements. ;-} But after doing these since 1997 (going on six years), I can usually throw it together quicker than Scott's script can publish the web page (that is if I am online when Jim sends out the posting). :-)
A script that converts straight text to HTML should convert *all* "<", ">" and "&" to their HTML equivalents (>, < and &), because those are not legal HTML characters.
Yes, that would be the most logical approach. I tend to use the numerical equivalents: < > and & instead of the 'named' entities.
But if the input contains HTML, then I can see it getting pretty tough!
The FOTDs do not usually contain instances of HTML, but they have had many places where the greater-than and less-than symbols are used around specific values: <atan> <imag> And, then there are the formulae containing the greater-than and less-than symbols, such as: frm:MandelbrotBC1 { ; by several Fractint users e=p1, a=imag(p2)+100 p=real(p2)+PI q=2*PI*fn1(p/(2*PI)) r=real(p2)-q Z=C=Pixel: Z=log(Z) IF(imag(Z)>r) Z=Z+flip(2*PI) ENDIF Z=exp(e*(Z+flip(q)))+C |Z| <a } This is the one instance I recently had to go back and update several past FOTD web pages. A portion of the last line was not showing up on browsers. Sincerely, P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/
Paul N. Lee wrote:
...I do my web pages the old fashioned way (by hand using Notepad),..
[bwg] And I thought *I* was macho because I do mine using vi (gvim, actually)!
Actually, using the vi Editor (along with the ex Editor) would make some things much easier than the old Win-95/98 Notepad. Especially when I need to do mass replacements. ;-}
I cannot recommend highly enough "gvim", which is "GUI vim", which is a window version of vim, which is a charityware version of vi...on steroids! 100% compatible with vi (in all important respects), plus much, much more. It's been my primary editor for years! (You even find a lot of unix platforms that have aliased it for "vi".) Vim (Vi iMproved): http://www.vim.org/
But if the input contains HTML, then I can see it getting pretty tough!
The FOTDs do not usually contain instances of HTML, but they have had many places where the greater-than and less-than symbols are used around specific values: <atan> <imag>
And, then there are the formulae containing the greater-than and less-than symbols,...
I understand. I think I have a "source" file for (g)vi(m) that does the necessary replacements (the only gotcha is to remember you must do the & => & FIRST or things get very broken). Let me see if I can find it.... heh, yeah, thought so...three lines: :%s#&#\&#g :%s#<#\<#g :%s#>#\>#g Open the file, type ":so txt2html.vim", press [Enter], Done! ;-) (Someone in your position might alias it to a function key....)
|Z| <a }
[...] A portion of the last line was not showing up on browsers.
ROFL! I wonder why.... ;-O -- |_ CJSonnack <Chris@Sonnack.com> _____________| How's my programming? | |_ http://www.Sonnack.com/ ___________________| Call: 1-800-DEV-NULL | |_____________________________________________|_______________________|
Programmer Dude wrote:
I cannot recommend highly enough "gvim", which is "GUI vim", which is a window version of vim, which is a charityware version of vi...on steroids! 100% compatible with vi (in all important respects), plus much, much more. It's been my primary editor for years! (You even find a lot of unix platforms that have aliased it for "vi".)
Vim (Vi iMproved): http://www.vim.org/
Wha about Emacs ( http://www.gnu.org/software/emacs )? Ciao, Danilo -- Dott. Danilo Spada Istituto di Psicologia della Facolta' medica Universita' degli Studi di Milano - Italia (Studio) 02 / 50 31 59 91 (Cell.) 328 / 61 78 382
Danilo Spada wrote:
I cannot recommend highly enough "gvim", which is "GUI vim", which is a window version of vim, which is a charityware version of vi...
Wha about Emacs ( http://www.gnu.org/software/emacs )?
That's not an editor; that's an Operating System! ;-) And, sorry, it's not for me. I'm a vi guy. (For those that don't know, serious editors--like operating systems-- are something of a matter of religious choice and preference... ) -- |_ CJSonnack <Chris@Sonnack.com> _____________| How's my programming? | |_ http://www.Sonnack.com/ ___________________| Call: 1-800-DEV-NULL | |_____________________________________________|_______________________|
Programmer Dude wrote:
And, sorry, it's not for me. I'm a vi guy.
So am I, but I'll have you know that many tens of thousands of lines of Fractint's code were typed in using Wordstar under DOS :-) I even had to write a little utility to strip out the ^Z at the bottom oif each file I edited ... I'm not sure about Jonathan, but if memory serves Bert Tyler used Wordstar also. I have never found another editor that does column block operations as well as Wordstar. Tim
Aurora editor does column block operations very well. However, their makers went out of business, apparently. ----- Original Message ----- From: Tim Wegner <twegner@swbell.net> To: Fractint and General Fractals Discussion <fractint@mailman.xmission.com> Sent: Friday, June 27, 2003 9:46 PM Subject: Re: [Fractint] FOTD 21-06-03 (Beware the Lava Pit [5])
Programmer Dude wrote:
And, sorry, it's not for me. I'm a vi guy.
So am I, but I'll have you know that many tens of thousands of lines of Fractint's code were typed in using Wordstar under DOS :-)
I even had to write a little utility to strip out the ^Z at the bottom oif each file I edited ...
I'm not sure about Jonathan, but if memory serves Bert Tyler used Wordstar also. I have never found another editor that does column block operations as well as Wordstar.
Tim
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Tim Wegner wrote:
I have never found another editor that does column block operations as well as Wordstar.
Ever use SPF under TSO in an MVS environment?? P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/
Tim Wegner wrote:
I'm not sure about Jonathan, but if memory serves Bert Tyler used Wordstar also. I have never found another editor that does column block operations as well as Wordstar.
Well if we are getting into the editor religious ravings then I might as well throw in my bid for Nedit. A very basic xwindow graphical editor that runs in unix/linux enviroment, that is simple to understand and is language sensitive and extensible. It also does column cut and paste, and block operations very nicely. regards, Noel Giffin, (the ghost in the machine)
participants (9)
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Andrew Coppin -
Danilo Spada -
Jim Muth -
John Lewis -
Noel Giffin -
Paul N. Lee -
Programmer Dude -
Ricardo M. Forno -
Tim Wegner